AWS ElastiCache Redis Module

Description

This Terraform module provisions an AWS ElastiCache Redis cluster, including associated security groups, parameter groups, subnet groups, and secrets. It supports optional authentication and encryption configurations.

Requirements

Name	Version
terraform	>= 1.3.0
aws	>= 4.0
random	>= 3.4.0

Providers

Name	Version
aws	>= 4.0
random	>= 3.4.0

Inputs

Name	Description	Type	Default	Required
project	Project name	string	-	yes
environment	Environment name	string	-	yes
parameter_group_family	Parameter group family	string	-	yes
parameter_group_parameters	List of parameter group parameters	list	[]	no
node_type	Node type for the ElastiCache cluster	string	-	yes
number_of_nodes	Number of nodes in the cluster	number	1	no
engine_version	Redis engine version	string	-	yes
vpc_id	VPC ID for the security group	string	-	yes
vpc_cidr	VPC CIDR block	string	-	yes
private_subnet_ids	List of private subnet IDs	list	-	yes
log_group	CloudWatch log group	string	-	yes
enable_auth	Enable authentication	bool	false	no
enable_transit_encryption	Enable transit encryption	bool	false	no
enable_at_rest_encryption	Enable at-rest encryption	bool	false	no

Outputs

Name	Description
auth_token_secret	The name of the Secrets Manager secret for authentication

Usage examples

Example 1: Basic usage of the module

module "elasticache_redis" {
  source                      = "github.com/opstimus/terraform-aws-elasticache-redis?ref=v<RELEASE>"
  project                     = "my-project"
  environment                 = "dev"
  parameter_group_family      = "redis6.x"
  node_type                   = "cache.t3.micro"
  number_of_nodes             = 1
  engine_version              = "6.x"
  vpc_id                      = "vpc-0abcd1234efgh5678"
  vpc_cidr                    = "172.16.0.0/16"
  private_subnet_ids          = ["subnet-0abcd1234efgh5678"]
  log_group                   = "my-log-group"
  enable_auth                 = true
  enable_transit_encryption   = true
  enable_at_rest_encryption   = true
}